[Comparison of laparoscopic vs. laparotomy treatment in ovarian teratomas].

Background: Benign cystic teratoma is one of the most common benign tumors of the ovary, according to international series represents between 44 and 62% of all ovarian tumors diagnosed in women younger than 40 years.

Objectives: To evaluate and compare the efficacy and safety between laparoscopy and laparotomy in the management of ovarian teratomas, as well as the recurrence between both techniques.

Materials And Method: Retrospective, clinical series study involving 169 cases of ovarian teratomas operated at the Instituto Nacional de Perinatología Isidro Espinosa de los Reyes in the period comprehended between 2000-2008.

[Combined hormonal contraception in cycles artificially extended].

Objective: To compare the bleeding patterns, satisfaction and tolerability of 3 different contraceptive in an extended regimens in the service of Family Planning of the North Central Hospital of PEMEX.

Material And Methods: Healthy, adult women with desire of contraception for one year (N 120) were randomly assigned to receive oral contraceptive drospirenone/ethinyl E2 (group1), the norelgestromin/ethinyl E2 transdermal patch (group 2) and vaginal ring etonogestrel/ ethinyl E2 (group 3) in an extended regimen (42 consecutive days, 1 hormone-free week). Study assessments were conducted at scheduled visits at the time of initial screening, at baseline after 1, 3, 6, and 12 months.

[Use of plasmakinetics vessel sealing vs suture material in abdominal total hysterectomy].

Objective: To compare the safety and efficacy of the use of bipolar plasmakinetic vessel sealing versus standard technique when performing total abdominal hysterectomy for benign disease.

Material And Methods: Controlled randomized trial involving 94 women who underwent total abdominal hysterectomy. Fourty seven procedures were performed using bipolar plasmakinetics vessel sealing and the remaining 47 with the standard suture technique.